Argillite and Slate Definition

Definition of Argillite and Slate

The general Argillite and Slate definition can be stated as: Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. On the other hand, Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. Along with definition of Argillite and Slate, get to know about Properties of Argillite and Slate. Get to know more information about Argillite and Slate origin and discoverer, etymology and class.

History of Argillite and Slate

The history of Argillite and Slate gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Argillite and Slate Origin and Discoverer

Argillite and Slate definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Argillite and Slate. In this section, you will know about Argillite and Slate Origin and Discoverer. Origin of Argillite is Unknown whereas Origin of Slate is England. It is interesting to know the name of Argillite and Slate discoverer. The discoverer of Argillite and Slate are Unknown.

Etymology of Argillite and Slate

Along with Argillite and Slate definition, know more about the etymology of Argillite and Slate. Etymology of Argillite and Slate gives information about origin and formation of a particular rock. Know more about Formation of Argillite and Formation of Slate. The etymology of Argillite is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite while that of Slate is From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Argillite belongs to Sedimentary Rocks while Slate belongs to Metamorphic Rocks. The sub-class, group and other categories of Argillite and Slate are listed below.

For Argillite,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Slate,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock